From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail2.candelatech.com ([208.74.158.173]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YOrN6-0003KZ-6z for ath10k@lists.infradead.org; Fri, 20 Feb 2015 17:28:12 +0000 Message-ID: <54E76E95.6070003@candelatech.com> Date: Fri, 20 Feb 2015 09:27:49 -0800 From: Ben Greear MIME-Version: 1.0 Subject: Re: Sending frames on monitor interface? References: <54E657C0.6080402@candelatech.com> In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Michal Kazior Cc: ath10k On 02/19/2015 10:43 PM, Michal Kazior wrote: > On 19 February 2015 at 22:38, Ben Greear wrote: >> Do any of the firmware versions support sending (raw) frames on >> the monitor interface? >> >> It seems 10.1 just asserts if someone tries this. I can fix at least >> some of this, but firmware seems to want a peer in order to transmit >> any packets...maybe adding self-peer to the monitor interface is >> a way to get around this? > > Just an idea: Once upon a time we had to create temporary DA peer for > offchannel tx (the code is still in ath10k). 10.1 might want something > like that as well for data frames. I hacked my CT firwmare to allow transmit on monitor interfaces, including logic to allow setting up a (fake) peer and rate-ctrl structures. I tweaked ath10k to create a peer when starting the monitor interface, using the local radio's MAC as the peer address (this could easily be part of the problem). I hacked the firmware to always use this peer object when transmitting on a monitor interface. Packets now appear to be accepted for transmit, but I do not see anything on the air. I'll dig into it more if I find time...but not sure exactly how useful the feature is anyway. I see the code for off-channel work that you are talking about. That seems like a pretty awful hack if you wanted to do any realistic throughput, but I bet that whatever issue this works around is the same issue that I am having trying to get monitor TX to work. Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k